$6m+2m$
$\frac{cos^2x-sen^2x+cosx.senx}{cos^2x}$
$2\sin\left(x\right)\cos\left(x\right)=2\tan\left(x\right)$
$\log3x=10$
$\left(a+2\right)+\left(a-2\right)$
$g\left(t\right)=\frac{\left(2+\sqrt{3-1}\right)}{1-\sqrt{1+x}}$
$5x^2-15x^2+25x^2$
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